Urban Eola

You knew this was coming. They look like gigantic LCD TV's. The ability to change the message depending on what type of consumer might pass it is fascinating.

"Nationwide networks of digital billboards and smaller video screens allow advertisers to change their sales pitches instantly, with the click of a computer mouse, from hundreds of miles away. Giant LED billboards rotate ads every few seconds, enabling billboard owners to sell the same space multiple times. And companies are experimenting with WiFi transmitters and Bluetooth technology that would send messages directly to your phone as you pass by their signs."Digital billboards put up big numbers, rouse critics